Analytical solution is applied to calculate elastic properties and strength parameters of the rocks, lithostatic pressure and pore pressure, stress state and wellbore stability. All of these are used to optimize trajectory (inclination and azimuth) and completion (optimal casing size and shoe depth) of the well, safe mud weight, ECD limits and tripping velocities during drilling and well construction procedures.

STANDARD

ADVANCED

COMPLEX

Mechanical properties, pore pressure and stress state calculation

Isotropic 1D Wellbore Stability (WBS)

WBS for planned well – trajectory and well design optimization, safe MW estimation

Anisotropic (TIV) 1D geomechanical model

Partial accounting for structure when planning highly deviated well

WBS calculation and well planning based on 3D geomechanical model (static)

Planning and optimization of drilling for field development based on 3D-4D modelling

Well completion and production optimization

Geomechanics study results integration with other disciplines allow resolving problems with sanding production, risks and uncertainty evaluation for hydraulic fracturing on a qualitatively new level.

For sanding prediction analytical solution is used to estimate dependency between reservoir and bottom hole pressure to define critical pressure at which sanding will occur. This allows proper planning of completion design at different stages of field development and well/pumps workovers.

Knowledge of mechanical properties distribution in vicinity of the well and at far field plays crucial role in defining sweet spots for well placement, identification favourable zones and intervals for stimulation, decision making for oriented perforation and hydraulic fracturing.

STANDARD

ADVANCED

COMPLEX

1D geomechanical model as a basis for frac design optimization

Bottom hole pres-sure evaluation to reduce risk of sanding production

Evaluation of optimal azimuth and interval for well placement in terms of hydraulic fracturing